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FireLordObamaOG t1_iyclxfy wrote

Reply to comment by vanriggs in TIL: Dogs don't have digestive enzymes in their saliva, nor can they chew side to side. Their jaws only allow for up-and-down movement because their diet doesn’t need as much chewing as ours does. by theotherbogart

Basically vegetables need to be ground up by our teeth for proper digestion. Same goes for some other foods. But basically our ability to grind those foods is only necessary because of our diet

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